1. Cross-platform app development
Xamarin forms
Cross-platform app development

2. Glenn Versweyveld @depechie Xamarin MVP
Microsoft Windows Development MVP

3. What is Xamarin Forms
Build native Uis for iOS, Android and Windows from a single, shared C# codebase
Xamarin forms

4. What is Xamarin Forms Shared UI Code Shared C# Backend
iOS C# UI
Windows C# UI
Android C# UI
Shared C# Backend
Traditional Xamarin approach
Xamarin Forms
More code-sharing, all native
Xamarin forms

5. More code-sharing, all native
What is Xamarin Forms
We get an API which allows us to build sharable user interface code
Will still render native UI on iOS, Android and Windows
Not only the application logic, but also the UI is contained within the shared project
UI can be coded in C# or declared in XAML
Shared C# Backend
Shared UI Code
Xamarin Forms
More code-sharing, all native
Xamarin forms

6. What is Xamarin Forms
Xamarin Forms is a cross-platform natively backed UI toolkit abstraction that allows developers to easily create user interfaces that can be shared across all targeted platforms ( iOS, Android and Windows ).
It allows rapid application development
It’s an abstraction on top of the native OS and UI elements
It will result in native apps with native look and feel
Xamarin forms

7. What is Xamarin Forms All forms apps are currently written in C#
If needed you can dig into the native OS like the traditional Xamarin approach
The shared code resides in a Shared Project or a PCL
Newer way is using .Net Standard 2.0 class library
Xamarin forms

8. Features 40+ Pages, layouts, and controls Two-way data binding
(Build from code behind or XAML)
Two-way data binding
Navigation
Animation API
Dependency Service
Messaging Center
Xamarin forms

9. Features Xamarin forms Content MasterDetail Navigation Tabbed Carousel
Stack
Absolute
Relative
Grid
ContentView
ScrollView
Frame
Xamarin forms

10. Features ActivityIndicator BoxView Button DatePicker Editor Entry
Image
Label
ListView
Map
OpenGLView
Picker
ProgressBar
SearchBar
Slider
Stepper
TableView
TimePicker
WebView
EntryCell
ImageCell
SwitchCell
TextCell
ViewCell
Xamarin forms

11. Features Xamarin forms <?xml version="1.0" encoding="UTF-8"?>
<TabbedPage xmlns="
xmlns:x="
x:Class="MyApp.MainPage">
<TabbedPage.Children>
<ContentPage Title="Profile" Icon="Profile.png">
<StackLayout Spacing="20" Padding="20"
VerticalOptions="Center">
<Entry Placeholder="Username"
Text="{Binding Username}"/>
<Entry Placeholder="Password"
Text="{Binding Password}"
IsPassword="true"/>
<Button Text="Login" TextColor="White"
BackgroundColor="#77D065"
Command="{Binding LoginCommand}"/>
</StackLayout>
</ContentPage>
<ContentPage Title="Settings" Icon="Settings.png">
<!-- Settings -->
</TabbedPage.Children>
</TabbedPage>
Xamarin forms

12. Community Fully Open Source – source code available on GitHub
Xamarin forms

13. Community Public Roadmap: aka.ms/xfroadmap 70 contributors*
700 merged pull requests*
37 evolution proposals*
* At time of creating powerpoint
Xamarin forms

14. Xamarin Forms
Demo
Xamarin forms

15. The future Easily embed any page into a Xamarin Native app
Xamarin forms

16. The future
Run and design apps without the actual build / debug process
Xamarin Live Player
Still in preview
Xamarin forms

17. Questions
Xamarin forms